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Refer to an 8-bit adder in Figure Q.1b. Circuit X is a 4-bit Ripple-Carry Adder and circuit Y is a 4-bit Carry-Look ahead Adder. Assume all FA are implemented using two HA and 1 OR gate, delay for gate XOR = 2t, OR = AND = 1t, carry generate gi = 1t, and carry propagate p =lt. Determine the propagation delay to generate C4, S3, C8, and S7. a74 b74 a3.0 b30 Ca C4 Y と4 S74 S3.0 Figure Q.1b Answer: tpd (C4) = tpd (S3) = tpd (C8) = tpd (S7) =

Refer to an 8-bit adder in Figure Q.1b. Circuit X is a 4-bit Ripple-Carry Adder and circuit Y is a 4-bit Carry-Look ahead Adder. Assume all FA are implemented using two HA and 1 OR gate, delay for gate XOR = 2t, OR = AND = 1t, carry generate gi = 1t, and carry propagate p =lt. Determine the propagation delay to generate C4, S3, C8, and S7. a74 b74 a3.0 b30 Ca C4 Y と4 S74 S3.0 Figure Q.1b Answer: tpd (C4) = tpd (S3) = tpd (C8) = tpd (S7) =

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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QUESTION 1 Refer to an 8-bit adder in Figure Q.1b. Circuit X is a 4-bit Ripple-Carry Adder and circuit Y is a 4-bit Carry-Look ahead Adder. Assume all FA are implemented using two HA and 1 OR gate, delay for gate XOR = 2t, OR = AND= 1t, carry generate g¡ = 1t, and carry propagate pi =lt. Determine the propagation delay to generate C4, S3, C8, and S7. a74 b7:4 a3:0 b3.0 C8 C4 Y 4 S74 S30 Figure Q.1b Answer: tpd (C4) = tpd (S3) = tpd (C8) = tpd (S7) =
Transcribed Image Text:QUESTION 1 Refer to an 8-bit adder in Figure Q.1b. Circuit X is a 4-bit Ripple-Carry Adder and circuit Y is a 4-bit Carry-Look ahead Adder. Assume all FA are implemented using two HA and 1 OR gate, delay for gate XOR = 2t, OR = AND= 1t, carry generate g¡ = 1t, and carry propagate pi =lt. Determine the propagation delay to generate C4, S3, C8, and S7. a74 b7:4 a3:0 b3.0 C8 C4 Y 4 S74 S30 Figure Q.1b Answer: tpd (C4) = tpd (S3) = tpd (C8) = tpd (S7) =
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